Regioselective functionalization of dimpled silica particles
ROUET, Pierre-Etienne
Centre de Recherche Paul Pascal [CRPP]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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Centre de Recherche Paul Pascal [CRPP]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
ROUET, Pierre-Etienne
Centre de Recherche Paul Pascal [CRPP]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Reduce
Centre de Recherche Paul Pascal [CRPP]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Language
en
Article de revue
This item was published in
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2016-05-27, vol. 510, p. pp. 239-244
Elsevier
English Abstract
Multipod-like particles made of a silica core surrounded by polystyrene nodules have been used as precur-sors to synthesize silica particles with 3 or 12 dimples through the selective growth of the dielectric core.Using ...Read more >
Multipod-like particles made of a silica core surrounded by polystyrene nodules have been used as precur-sors to synthesize silica particles with 3 or 12 dimples through the selective growth of the dielectric core.Using the polymer nodules as temporary protecting masks, we regioselectively grafted amino groupsonto the unprotected silica surface, as revealed by the adsorption of gold markers. After dissolution ofthe PS nodules, some polymer chains remained grafted onto the silica surface, forming organic bumps atthe bottom of the dimples. These residues were also selectively functionalized, leading to silica particleswith both entropic and enthalpic patches.Read less <
English Keywords
Surface modification
Regioselectivity
Patchy particles
Silica
Polystyrene
ANR Project
Towards Colloidal Molecules and Functional Materials - ANR-07-BLAN-0271
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Origin
Hal imported